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ALF-7260: unit tests, bug fixes.

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git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@31455 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Matt Ward
2011-10-25 08:28:13 +00:00
parent b9c32d6aa5
commit 4ef52e4e72
27 changed files with 1428 additions and 187 deletions
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197
source/java/org/alfresco/util/schemacomp/DefaultComparisonUtils.java Normal file
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/*
* Copyright (C) 2005-2011 Alfresco Software Limited.
*
* This file is part of Alfresco
*
* Alfresco is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Alfresco is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
*/
package org.alfresco.util.schemacomp;
import java.util.Collection;
import org.alfresco.util.schemacomp.Result.Strength;
import org.alfresco.util.schemacomp.Result.Where;
import org.alfresco.util.schemacomp.model.DbObject;
import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.collections.Predicate;
/**
* A collection of utility methods for determining differences between two database schemas.
*
* @author Matt Ward
*/
public class DefaultComparisonUtils implements ComparisonUtils
{
/**
* @param objToFind
* @return
*/
@Override
public DbObject findSameObjectAs(Collection<? extends DbObject> objects, final DbObject objToFind)
{
return (DbObject) CollectionUtils.find(objects, new Predicate()
{
@Override
public boolean evaluate(Object o)
{
DbObject object = (DbObject) o;
return object.sameAs(objToFind);
}
});
}
@Override
public void compareSimpleCollections(Collection<? extends Object> leftCollection,
Collection<? extends Object> rightCollection, Differences differences, Strength strength)
{
for (Object leftObj : leftCollection)
{
if (rightCollection.contains(leftObj))
{
// The same valued object in the right hand collection as in the left.
// Note: it isn't possible to determine a result of Where.IN_BOTH_BUT_DIFFERENCE
// with a 'simple' value — as there is no way of knowing if the term represents the same value
// (e.g. two strings {red_value, green_value}, are these meant to be the same or different?)
differences.add(Where.IN_BOTH_NO_DIFFERENCE, leftObj, leftObj, strength);
}
else
{
// No equivalent object in the right hand collection.
differences.add(Where.ONLY_IN_LEFT, leftObj, null, strength);
}
}
// Identify objects in the right collection but not the left
for (Object rightObj : rightCollection)
{
if (!leftCollection.contains(rightObj))
{
// No equivalent object in the left hand collection.
differences.add(Where.ONLY_IN_RIGHT, null, rightObj, strength);
}
}
}
/**
* Compare collections, reporting differences using the default {@link Result.Strength}
*
* @see #compareCollections(Collection, Collection, Differences, Strength)
*/
@Override
public void compareCollections(Collection<? extends DbObject> leftCollection,
Collection<? extends DbObject> rightCollection, Differences differences)
{
compareCollections(leftCollection, rightCollection, differences, null);
}
/**
* Compare collections of {@link DbObject}s using their {@link DbObject#diff(DbObject, Differences)} method.
* Differences are reported using the specified {@link Result.Strength}.
*
* @param leftCollection
* @param rightCollection
* @param differences
* @param strength
*/
@Override
public void compareCollections(Collection<? extends DbObject> leftCollection,
Collection<? extends DbObject> rightCollection, Differences differences, Strength strength)
{
for (DbObject leftObj : leftCollection)
{
DbObject rightObj = findSameObjectAs(rightCollection, leftObj);
if (rightObj != null)
{
// There is an equivalent object in the right hand collection as
// in the left.
leftObj.diff(rightObj, differences, strength);
}
else
{
// No equivalent object in the right hand collection.
differences.add(Where.ONLY_IN_LEFT, leftObj, null, strength);
}
}
// Identify objects in the right collection but not the left
for (DbObject rightObj : rightCollection)
{
if (!leftCollection.contains(rightObj))
{
// No equivalent object in the left hand collection.
differences.add(Where.ONLY_IN_RIGHT, null, rightObj, strength);
}
}
}
/**
* Compare two simple objects. Differences are reported using the default Result.Strength.
*
* @see #compareSimple(Object, Object, Differences, Strength)
*/
@Override
public void compareSimple(Object left, Object right, Differences differences)
{
compareSimple(left, right, differences, null);
}
/**
* Compare two 'simple' (i.e. non-{@link DbObject} objects) using their {@link Object#equals(Object)} method
* to decide if there is a difference. Differences are reported using the Result.Strength specified.
*
* @param left
* @param right
* @param differences
* @param strength
*/
@Override
public void compareSimple(Object left, Object right, Differences differences, Strength strength)
{
Where where = null;
if (left == right)
{
// Same object, or both nulls
where = Where.IN_BOTH_NO_DIFFERENCE;
}
else if (left == null)
{
// right can't be null, or left == right would have been true
where = Where.ONLY_IN_RIGHT;
}
else if (right == null)
{
// left can't be null, or left == right would have been true
where = Where.ONLY_IN_LEFT;
}
else
{
// neither are null
if (left.equals(right))
{
where = Where.IN_BOTH_NO_DIFFERENCE;
}
else
{
where = Where.IN_BOTH_BUT_DIFFERENCE;
}
}
differences.add(where, left, right, strength);
}
}